Mike Nowlin wrote: > Agreed, but this may be quite a project... doing a "cd ~bob" would be > fun. :) You would pretty much have to implement some timing > requirements, but I imagine that it could bulk up that section of the > kernel pretty easily.
Yep. I started to hack something like this into sio.c in the days of 2.1, then the need disappeared for a while and I never completed it. > One thing that might help (assuming you CAN > generate a break) is to watch DCD (or some other control line(s)). Yes. (DSR also jumps to mind.) > Generally, when a break is sent intentionally, the DCD line is active -- > when the kernel detects a break, wait until after it's finished, then > check DCD. If it's high, drop to debugger. If it's low, somebody either > turned the terminal off or dropped outta kermit. Excellent idea. > (I have the displeasure of maintaining an AIX box that does something > similar to this. Before the upgrade that fixed this problem, turning off > the serial console brought the whole machine down.) Suns tend to do it too. Great fun when patch-monkeys disturb the cable to the console... :-) -- Phil Homewood DNRC email: ph...@mincom.com Postmaster and BOFH Mincom Pty Ltd phone: +61-7-3303-3524 Brisbane, QLD Australia fax: +61-7-3303-3269 To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
